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C- *R
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CO an
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PL
IA
NT
Features
■ Shielded construction
■ Carbonyl powder core
7
R4 318
1
■ High saturation current
■ Inductance range: 0.20 to 22 µH
■ AEC-Q200 compliant
■ RoHS compliant* and halogen free**
SRP1245A Series - Shielded Power Inductors
Electrical Specifications @ 25 °C
Bourns
Part Number
Inductance
@ 100 KHz
Q (Min.)
/1V
@100 KHz
/1V
L
Tol.
(μH)
(%)
SRP1245A-R20M
SRP1245A-R22M
SRP1245A-R33M
SRP1245A-R36M
SRP1245A-R39M
SRP1245A-R47M
SRP1245A-R50M
SRP1245A-R56M
SRP1245A-R68M
SRP1245A-R82M
SRP1245A-1R0M
SRP1245A-1R2M
SRP1245A-1R5M
SRP1245A-1R8M
SRP1245A-2R2M
SRP1245A-2R7M
SRP1245A-3R3M
SRP1245A-4R7M
SRP1245A-5R6M
SRP1245A-6R0M
SRP1245A-6R8M
SRP1245A-8R2M
SRP1245A-100M
SRP1245A-180M
SRP1245A-220M
0.20
0.22
0.33
0.36
0.39
0.47
0.50
0.56
0.68
0.82
1.0
1.2
1.5
1.8
2.2
2.7
3.3
4.7
5.6
6.0
6.8
8.2
10
18
22
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
10
10
15
15
15
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
General Specifications
SRF
(MHz)
Typ.
DCR
(mΩ)
Typ.
DCR
(mΩ)
Max.
Irms
(A)
Isat
(A)
130
120
90
80
78
70
65
60
50
45
40
35
30
27
24
23
22
15
13
12
12
11
10
7
6
0.45
0.5
0.7
0.75
0.78
0.86
0.9
1
1.4
1.7
1.85
2.5
2.8
4
4.2
4.7
6.8
11.4
12.3
13
14.5
16.8
21.4
40
50
0.55
0.7
0.9
0.95
0.95
1.1
1.3
1.5
1.7
2.1
2.5
3.0
3.3
4.9
5.5
6.7
9.2
15.0
16.5
16.5
18.5
22.5
25.5
45.0
58
52
52
42
42
42
38
37
36
34
31
29
28
27
21
20
17
15
12
11.5
11.5
11
9.5
9
7.5
6.5
110
110
80
75
70
65
60
55
54
52
50
49
48
40
32
32
32
27
22
21.5
21
18
16
11
10
Terminal
Type
NonLead
Frame
Test Voltage ....................................1.0 V
Test Frequency ......................... 100 KHz
Operating Temperature
................................-55 °C to +150 °C
(Temperature rise included)
Storage Temperature .. -55 °C to +150 °C
Rated Current
............ Inductance drops 20 % at Isat
Temperature Rise .....40 °C at rated Irms
Moisture Sensitivity Level ..................... 1
ESD Classification (HBM)................. N/A
1 Circuit design, component, PCB trace
size and thickness, airflow and other
cooling provisions all affect the part
temperature. Part temperature should be
verified in the end application.
Materials
Lead
Frame
Core .............................Carbonyl powder
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging ....... 500 pcs. per 13-inch reel
How to Order
SRP1245A - 100M
Model
Value Code (see table)
Product Dimensions
Recommended Layout
Non-Lead Frame Terminal
14.2
(.559)
Lead Frame Terminal
13.5 ± 0.5
(.531 ± .020)
13.5 ± 0.5
(.531 ± .020)
5.0
(.197)
R20
1510
12.5 ± 0.3
(.492 ± .012)
3R3
1510
12.5 ± 0.3
(.492 ± .012)
4.8 ± 0.2
(.189 + .008)
2.75 ± 0.35
(.108 ± .014)
8.0
(.315)
Please consult Bourns® Model SRP-A
Series Visual Inspection Guide for detailed
construction, processing and testing
information.
4.8 ± 0.2
(.189 + .008)
2.75 ± 0.35
(.108 ± .014)
2.3 ± 0.3
(.091 ± .012)
2.0
(.079)
REF.
2.3 ± 0.3
(.091 ± .012)
GRADUATED
LINE
2.0
(.079)
REF.
GRADUATED
LINE
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
4.7 ± 0.3
(.185 ± .012)
DIMENSIONS:
MM
(INCHES)
4.7 ± 0.3
(.185 ± .012)
Specifications are subject to change without notice. Users should verify actual device performance in their specific
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
* RoHS Directive 2015/863, Mar 31, 2015 and Annex.
** Bourns considers a product to be “halogen free” if
(a) the Bromine (Br) content is 900 ppm or less; (b)
the Chlorine (Cl) content is 900 ppm or less; and (c)
the total Bromine (Br) and Chlorine (Cl) content is
1500 ppm or less.
SRP1245A Series - Shielded Power Inductors
L vs. I Charts
0.32
120
90
0.24
90
0
30
0.8
0.42
60
0.28
40
0.14
20
60
0
0
13
DC Current (A)
0.4
44
0.2
22
52
0.8
80
1.2
0.6
60
0.4
40
0.2
20
0
0
11
0.72
72
0.48
48
0.24
24
31.2
20.8
Inductance (μH)
0.96
10.4
30
0.6
6
12
18
24
DC Current (A)
30
36
0
42
Inductance (μH)
60
1.2
0
120
0.9
90
0.6
60
0.3
30
0
0
9
18
36
27
45
0
54
SRP1245A-1R2M
120
1.2
40
1.2
90
0.9
30
0.8
60
0.6
20
0.3
10
0.4
30
10
30
20
40
0
50
0
0
9.8
19.6
3
90
2
60
1
30
0
10
20
DC Current (A)
39.2
30
0
40
SRP1245A-2R2M
4
150
120
0
29.4
50
0
49
DC Current (A)
SRP1245A-1R8M
4
Temperature Rise (°C)
Inductance (μH)
90
150
1.6
0
1.8
0
65
DC Current (A)
0
120
2.4
0
44
33
0
55
SRP1245A-R68M
DC Current (A)
SRP1245A-1R5M
52
1.5
0
52
41.6
39
26
150
DC Current (A)
3.0
22
SRP1245A-1R0M
2.0
Temperature Rise (°C)
Inductance (μH)
120
96
0
13
DC Current (A)
SRP1245A-R82M
0
0
1.5
DC Current (A)
1.20
30
0
Inductance (μH)
39
0
65
Inductance (μH)
26
60
0.4
100
0
65
0
13
90
0.6
0.2
Inductance (μH)
66
Inductance (μH)
Inductance (μH)
Temperature Rise (°C)
88
120
DC Current (A)
SRP1245A-R56M
1.0
110
0.6
0
52
SRP1245A-R47M
DC Current (A)
SRP1245A-R50M
0.8
39
26
Inductance (μH)
80
0
75
0
SRP1245A-R39M
0
80
60
40
DC Current (A)
Temperature Rise (°C)
0.15
Inductance (μH)
60
45
20
0
0.56
120
0.30
30
0
0
110
1.0
0.7
90
15
88
100
150
Temperature Rise (°C)
0.45
0
66
44
30
DC Current (A)
SRP1245A-R36M
0.60
22
60
0.2
Temperature Rise (°C)
0
DC Current (A)
90
0.4
Temperature Rise (°C)
0
110
88
30
120
0.6
Temperature Rise (°C)
0.08
Temperature Rise (°C)
66
44
60
Temperature Rise (°C)
22
0
0.16
150
120
3
90
2
60
1
30
0
0
8
16
24
Temperature Rise (°C)
30
Inductance (μH)
60
SRP1245A-R33M
0.8
Temperature Rise (°C)
Inductance (μH)
0.14
0.07
150
Temperature Rise (°C)
120
0.21
Inductance (μH)
0.28
Temperature Rise (°C)
0.4
0
Inductance (μH)
SRP1245A-R22M
150
Temperature Rise (°C)
SRP1245A-R20M
0.35
0
32
DC Current (A)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
SRP1245A Series - Shielded Power Inductors
L vs. I Charts
64
4
120
2.7
48
3
90
1.8
32
2
60
1
30
0
0
0
40
8
0
30
0
17.6
Inductance (μH)
Temperature Rise (°C)
Inductance (μH)
2
0
22
60
4
48
4
40
2
100
18
80
15
60
6
40
4
20
2
0
13.5
24
4.3
21
45
14
30
7
15
4
6
20
0
5.25
DC Current (A)
12
100
25
80
20
60
9
40
6
20
3
0
4
8
15.75
10.5
0
21
12
0
16
SRP1245A-180M
45
36
15
27
0
18
5
9
0
0
2.2
4.4
6.6
8.8
0
11
DC Current (A)
8
Temperature Rise (°C)
Inductance (μH)
60
2
2
0
0
21.5
100
75
28
0
17.2
SRP1245A-100M
DC Current (A)
SRP1245A-220M
0
12.9
8.6
0
0
18
DC Current (A)
35
Inductance (μH)
80
0
Inductance (μH)
8
0
27
6
0
Temperature Rise (°C)
Inductance (μH)
10
21.6
SRP1245A-6R8M
DC Current (A)
SRP1245A-8R2M
16.2
DC Current (A)
SRP1245A-6R0M
DC Current (A)
9
10.8
8
60
4.5
5.4
72
4
0
0
96
90
12
0
0
32
6
120
6
13.2
30
8
8
8.8
60
2
10
10
4.4
4
120
150
0
24
Inductance (μH)
SRP1245A-5R6M
10
16
90
DC Current (A)
Inductance (μH)
30
20
DC Current (A)
Temperature Rise (°C)
10
Temperature Rise (°C)
0
120
6
Temperature Rise (°C)
16
150
Temperature Rise (°C)
0.9
SRP1245A-4R7M
8
150
Temperature Rise (°C)
3.6
Inductance (μH)
5
Temperature Rise (°C)
Inductance (μH)
SRP1245A-3R3M
80
Temperature Rise (°C)
SRP1245A-2R7M
4.5
0
10
DC Current (A)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
SRP1245A Series - Shielded Power Inductors
Soldering Profile
Electrical Schematic
PRE-HEATING
NATURAL
COOLING
SOLDERING
TP (260 °C / 10 seconds max.)
Temperature (°C)
tp (245 °C / 20~40 seconds)
217
200
60 ~ 150 seconds
150
60 ~ 180 seconds
480 seconds max.
25
Time (Seconds)
REFLOW TIMES: 3 MAX.
Packaging Specifications
330
DIA.
(12.99)
2.0 ± 0.5
(.079 ± .020)
13.5 ± 0.5
(.531 ± .020)
DIA.
100.0 ± 2.0
(3.937 ± .079)
13.5 ± 0.5
DIA.
(.531 ± .020)
24.0 ± 0.5
(.945 ± .020)
1.75
(.069)
2.0
(.079)
13.0 ± 0.1
(.512 ± .004)
Marking
Date Code
Marking
QTY: 500 PCS. PER REEL
Date Code
USER DIRECTION OF FEED
Marking
16.0 ± 0.1
(.630 ± .004)
0.35 ± 0.05
(.014 ± .002)
1.5 ± 0.1
DIA.
(.059 ± .004)
Date Code
Marking
Date Code
Marking
24.0 ± 0.3
(.945 ± .012)
4.0
(.157)
Date Code
11.5 ± 0.1
(.453 ± .004)
24
(.945)
3°
7.0 ± 0.1
(.276 ± .004)
13.0 ± 0.1
(.512 ± .004)
5.5 ± 0.1
(.217 ± .004)
DIMENSIONS:
14.2 ± 0.1
(.559 ± .004)
MM
(INCHES)
REV. 11/19
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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